Machine for decorticating fruit having a hard shell.



A. OLIER. MACHINE FOR DECORTICATING FRUIT HAVING A HARD SHELL.

APPLICATION FILED NOV. 7.19I3. 7,Mn

1 9 1 Patented June 20, 1916.

WIT VzFSSFSJ /V V F/ V -TOR M may WMfi/u ANDRE OLIER, 0F USINESST.-RE1VIY, CLERIVIONT-FERRAND, FRANCE, ASSIGNOB' 'IO SOCIETE A. OLIER &CIE., 0F USINES ST.-RE1VIY, CLERIVION'T-FEBRAND, FRANCE.

MACHINE FOR DECORTICATING FRUIT-HAVING A HARD SHELL.

Application filed November 7, 1913.

This invention relates to a machine for decorticating fruit having ahard shell, such as palm nuts, in which the fruit fall vertically towardthe periphery of a drum provided with blades and rotating at a highspeed, the falling nuts being thus thrown by the rotating blades againstan abutment plate.

The above machine has the advantagethat it is not liable to becomechoked, its construction is very simple so far as the working parts andalso the driving transmission are concerned and it permits also ofobtaining a large output while being of a "cry compact construction.

,is provided at the bottom with an opening d. Through the casing 0,extends horizontally a shaft 7 carrying a drum 9 having at its ends twoside plates k. Between the plates 71,, all around the drum, are-arrangedblades 2', the lateral edges of which are turned at right angles andbolted or riveted to the side plates k. The blades 2' are inclined onthe radius of the drum and may be arranged as shown in a substantiallytangential direction, the blades extendingrean,

wardly with regard of the direction of rotation of the drum, which isshown by the arrow.

The drum is rotated by any suitable means and rotates at a speed of 1000to 1500 revolutions per minute.

Specification of Letters Patent.

The annexed drawing is a diagrammat- Patented June 20, 1916.

Serial No. 799,661.

The nuts or other fruit placed into the hopper a are dischargedtherefrom when the distributor b rotates and fall toward the peripheryof the drum 9 so that the blades 71 carried thereon, owing to theirrapid movement of rotation strike suddenly the falling nuts and throwthem forcibly against the opposite wall 0 of the casing which acts as anabutment plate. By means of the two blows imparted successively to thenuts, the shell thereof is broken and the shell and kernel fall togetherupon the bottom of the casing to be discharged through the opening at.

Having now described my invention, what I claim as new and desire tosecure by Letters Patent is:

.1. In a machine for decorticating fruit,

. a rotatable drum, blades projecting from the outer periphery of thedrum, disposed tangentially thereto, and extending rearwardly withregard of the direction of rotation of the drum, an'abutmentplate-arranged at one side of the drum and substantially parallelthereto, and means for discharging fruit toward the periphery of thedrum at the same side of the drum as the abutment plate, substantiallyas described and for the purpose set forth.

2. In a machine for decorticating fruit, a rotatable drum, bladesprojecting from the outer periphery of the drum,."disposed tangentiallythereto and extending rearwardly with regard of the direction ofrotation of the drum, an abutment plate arranged at one side of the drumand substantially parallel thereto, a hopper disposed above the spacebetween the drum and the abutment plate and adapted to discharge fruittoward the periphery of the drum, and a rotating distributer arranged atthe bottom of the hopper for regulating the discharge of fruittherefrom, substantially as described and for the purpose set forth.

'In testimony whereof I have signed my

